JP3440849B2 - Terminal crimp applicator - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an applicator for crimping terminals.

[0002]

2. Description of the Related Art Generally, an applicator for crimping a terminal is known as a device for continuously crimping a terminal fitting to the end of an electric wire. This terminal crimping applicator is a terminal strip feeding unit that pays out and feeds a long terminal strip wound around a reel, and a terminal fitting is separated from the fed terminal strip and crimped to an electric wire. The press section is included, and the crimping step is automatically performed continuously by linking these sections.

FIG. 4 is a schematic plan view schematically showing the operation of the terminal strip feeding section of a general terminal crimping applicator.
As shown in FIG. 4, the terminal strip B is formed by arranging the terminals T in parallel at a constant interval in the direction orthogonal to the long carrier B1 and connecting the terminals T with the connecting portion B2 to integrate them. It is wound in a reel shape. The carrier B1 is provided with a feed hole B3 for each terminal T. The terminal strip feeding section has a conveying pawl 2 having a locking section 1 that can be fitted into the feeding hole B3, and operates the carrier B1 by pressing the carrier B1 in conjunction with the pressing operation of a pressing section (not shown). Was conveyed to the press position P of.

By the way, when the terminal strip B is conveyed by the conveying claw 2 in the case where the electric wire is automatically fed to the press position P, the electric wire is manually moved to the press position P simultaneously with the crimping operation of the press section. In the case of the type of feeding, it is performed after the pressing operation is completed, but in any case, in order to stabilize the conveyance of the carrier B1 by the conveying claw 2, a brake 3 for pressing the carrier B1 from above is provided. Was there. As shown in the figure, in the conventional terminal crimping applicator, the brake 3 is arranged on the upstream side of the carrying claw 2 in the carrying direction D of the carrier B1.

[0005]

In the above-mentioned structure, the length of the terminal strip which can be fed by the terminal strip feeding portion is determined by the position p1 from the feeding position p2 on the press portion to the position pressed by the brake 3. (Hereinafter referred to as "minimum usable length L" in this specification). Here, conventionally, since the brake 3 that holds the carrier B1 is located upstream of the transport pawl 2, the minimum usable length L is also located upstream of the transport pawl 2 as a base point, and the material is scrapped by that amount. The terminal strip B was also long.

The present invention has been made in view of the above problems, and an object of the present invention is to provide an applicator for crimping a terminal which can reduce the waste material of the terminal strip as much as possible.

[0007]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a conveying claw for conveying a terminal strip, which is connected to a strip-shaped carrier with its terminals protruding in the width direction, to a press section. And a brake that presses the carrier, in a terminal crimping applicator that crimps the terminal of the terminal strip carried by the carrying claw at a predetermined pressing position by a pressing portion to crimp the wire in the carrying direction of the carrier. Set the pressing position of the brake to the downstream side of the transfer claw and place it closer to the press position of the press section than the transfer claw.
It is an applicator for crimping a terminal, characterized in that a brake is arranged in the position .

In the invention including this specific matter, since the brake is arranged at a position closer to the press position of the press section than the conveying claw, the carrier can be conveyed by the conveying claw even in the "minimum usable length". From the correct position to the press position. In a preferred aspect, the brake includes a pressing portion that is attached via an elevating body that is relatively displaceable with respect to the applicator body, and the elevating body is such that the operating lever causes the pressing portion to move the carrier of the terminal strip. It is lifted / lowered between a pressing posture for pressing and a releasing posture for releasing the carrier.

In the invention including this specific matter, the carrier can be pressed or released by moving the lifting body up and down with the operation lever.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a terminal crimping applicator 10 according to an embodiment of the present invention.
2 is a perspective view showing a schematic configuration of FIG. 2, FIG. 2 is a cross-sectional view showing an essential part of FIG. 1, and FIG.
(B) shows the released state of the brake. Also,
FIG. 3 is a schematic plan view schematically showing the operation of the terminal strip feeding section according to the embodiment of FIG.

Referring to FIG. 1, the terminal crimping applicator 10 according to the illustrated embodiment includes an applicator main body 11
Is equipped with. The applicator body 11 constitutes a machine body mounted on a press device (not shown).
A press section 12 is attached to the applicator body 11. The press section 12 includes an anvil 13 on the pressure receiving side,
Terminal T of terminal strip B in cooperation with anvil 13 (see FIG. 3)
It includes a crimper 14 for crimping. Crimper 14
In order to move up and down with respect to the anvil 13, the press section 12 is provided with a shank 15 which is connected to a press device (not shown). The shank 15 is formed inside the shank holder 16 integrally formed with the applicator body 11. It is mounted on and is housed so that it can move up and down. The press section 12 includes a slide cutter 17 for cutting the terminal T from the terminal strip B, a punch 18 for driving the slide cutter 17, and the like, but the configuration of these is the same as a known one. Therefore, the detailed description thereof will be omitted.

A terminal strip carrier 20 is arranged on the side of the press section 12. The terminal strip transport unit 20 is fixed to the applicator body 11 and is fixed along the longitudinal direction of the guide plate 21 and the guide plate 21 that partition the transport path of the terminal strip B, and guides the terminal strip B together with the guide plate 21. And a guide 22 that operates as a fixed side member. On the other hand, in order to drive the terminal strip B along these members on the fixed side, the applicator body 11 is provided with
A feed cam 24 whose top is pivotally supported by a rotary shaft 23.
And a holder 25 attached to the feed cam 24,
A movable claw 27, which is swingably supported by a shaft 26 attached to the holder 25, is provided as a movable member.

The feed cam 24 is connected to the shank 15 via a link 28 so that it can be rotated around the rotation shaft 23 in conjunction with the crimping operation of the press portion 12 at a predetermined timing. Has become. The transfer claw 2
7, the locking portion 27a formed at one end is inclined downward, and the other end is biased upward by a tension coil spring 28 attached to the feed cam 24. As a result, the guide plate 21 and the guide 22 are
The terminal strip B is intermittently locked by locking the feed hole B3 provided in the carrier B1 of the terminal strip B guided by and converting the rotational movement of the feed cam 24 into a parallel movement along the terminal strip transport direction D. It is possible to send it to others.

A brake unit 30 is detachably attached to the applicator body 11 in order to prevent the terminal strip B from being displaced. Referring to FIGS. 1 and 2, the brake unit 30 includes a mounting member 31 fixed to the applicator main body 11, and an elevating body 33 elastically connected to the mounting member 31 via a coil spring 32. It has and. The lifting body 3
Reference numeral 3 denotes a metal member formed in a columnar shape having a rectangular cross section, which is connected only up and down only by a pair of bolts 31a that hang down from the bottom of the mounting member 31, and
The coil springs 32 arranged on the outer circumference of the bolts 31a are urged downward.

A pressing portion 34 is attached to the top of the lifting body 33. The pressing portion 34 is formed in a U-shape, straddles the guide 22, and faces the upper surface of the guide plate 21 from the front of the applicator body 11 so as to be able to press the carrier B1 of the terminal strip B. Here, a cam handle 35 is attached to the attachment member 31 by a stud bolt 36, and is supported rotatably around the stud bolt 36.

As shown in FIGS. 2A and 2B, the stud bolt 36 is inserted through the insertion hole 33a of the elevating body 33, and the elevating body 33 connects the insertion hole 33a and the stud bolt 36. Due to the clearance between the mounting member 31 and the stud bolt 36, relative displacement in the vertical direction is allowed. Along with this, a cam 35a is formed at the base of the cam handle 35, and the lifting body 33 is
The cam surface 33b is formed on the top of the cam 35a.

The cam handle 35 can move the elevating body 33 up and down by pressing the cam surface of the elevating body 33 with the cam 35a. In the above configuration, as shown in FIG.
On the other hand, since the brake (pressing portion) 34 is arranged at a position closer to the transport claw 27, the minimum usable length L is the position at which the carrier B1 can be transported by the transport claw 27 (Pa in FIG. 3). ) To the press position P2.
As described above, in the illustrated embodiment, the minimum usable length L is set as short as possible, and thus, the remarkable effect that the loss of the terminal strip B can be reduced is achieved.

In particular, the pressing portion 34 of the brake unit 30 is attached via an elevating body 33 which is displaceable relative to the applicator main body 11, and
The elevating body 33 is a cam handle 3 as an operating lever.
Since it is moved up and down by 5 as described above, there is an advantage that operability is improved. The embodiment described above is
However, the present invention is not limited to the above-described embodiments, which are merely illustrative of preferred specific examples of the present invention. It goes without saying that various design changes can be made within the scope of the claims of the present invention.

[0019]

As described above, according to the present invention,
Since the brake will be placed closer to the press position of the press section than the transfer claw, the minimum usable length can be set as short as possible, thus reducing the loss of the terminal strip. It has a remarkable effect that it can be done.

In particular, in the case where the above-mentioned brake presses the carrier through the elevating body which is moved up and down by the operating lever, it is possible to press or release the carrier by the operating lever. Has the advantage that

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic configuration of an applicator for terminal crimping according to an embodiment of the present invention.

2A and 2B are cross-sectional views showing a main part of FIG. 1, in which FIG. 2A shows a brake pressed state, and FIG. 2B shows a brake released state.

FIG. 3 is a schematic plan view schematically showing the operation of the terminal strip feeding section according to the embodiment of FIG.

FIG. 4 is a schematic plan view schematically showing the operation of a terminal band feeding unit of a general terminal crimping applicator.

[Explanation of symbols]

Applicator for crimping 10 terminals 11 Applicator body 12 Press Department 20-terminal strip conveyor 21 Guide plate 22 Guide 27 Transport claw 30 brake unit 33 Lifting body 33a insertion hole 33b cam surface 34 Pressing part (main part of brake) 35 Cam handle (operation lever) 35a cam B terminal strip B1 career D terminal strip transport direction L Minimum usable length P Press position T terminal

Claims (2)

(57) [Claims] 1. A carrier claw for transporting a terminal strip to which a terminal is projected and connected to a strip-shaped carrier to a press section, and a brake for pressing the carrier,
In a terminal crimping applicator for crimping a terminal strip terminal conveyed by a conveying claw to a wire at a predetermined pressing position, the brake pressing position is located downstream of the conveying claw in the carrier conveying direction. Set to the press position of the press section
On the other hand, the terminal crimping applicator is characterized in that the brake is arranged at a position closer to the transfer claw . 2. The terminal crimping applicator according to claim 1, wherein the brake includes a pressing portion mounted via an elevating body that is relatively displaceable with respect to the applicator body,
The terminal crimping applicator in which the lifting body is lifted and lowered by a control lever between a pressing position in which the pressing part presses the carrier of the terminal strip and a releasing position in which the carrier is released.